diff --git a/src/i830_dri.c b/src/i830_dri.c
index c28f3ab7..d00b42c8 100644
--- a/src/i830_dri.c
+++ b/src/i830_dri.c
@@ -309,7 +309,8 @@ I830DRI2CopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
 	box = REGION_EXTENTS(unused, pGC->pCompositeClip);
 	crtc = i830_covering_crtc(pScrn, box, NULL, &crtcbox);
 
-	if (crtc != NULL) {
+	/* Make sure the CRTC is valid and this is the real front buffer */
+	if (crtc != NULL && !crtc->rotatedData) {
 	    if (pI830->use_drm_mode)
 		pipe = drmmode_get_pipe_from_crtc_id(pI830->bufmgr, crtc);
 	    else {